| NPNorthern Pacific Airways, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| NPNorth Penn - Area 7 Superfund Site | North Wales | PA | — | ◇ UNVERIFIED |
| NHNorthshore Hydraulics, LLC | Tickfaw | LA | — | ◇ UNVERIFIED |
| NTNozzle Tech USA, LLC | Springville | UT | — | ◇ UNVERIFIED |
| OPOgden Painting Facility | Ogden | UT | — | ◇ UNVERIFIED |
| OPOlmsted Products CO. | Traverse City | MI | — | ◇ UNVERIFIED |
| PVPacific Valves | Long Beach | CA | — | ◇ UNVERIFIED |
| PAPall Aerospace | Pinellas Park | FL | — | ◇ UNVERIFIED |
| PPPALMETTO PUMP & CONTROL, LLC | Leesville | SC | — | ◇ UNVERIFIED |
| PDPanoche Drainage District | Firebaugh | CA | — | ◇ UNVERIFIED |
| PEPantex Ennerflo Systems Inc | Houston | TX | — | ◇ UNVERIFIED |
| PEPantex Ennerflo Systems Inc | Houston | TX | — | ◇ UNVERIFIED |
| PCParamount Cnc Solutions INC | Willmar | MN | — | ◇ UNVERIFIED |
| PCPar-kan Company | Silver Lake | IN | — | ◇ UNVERIFIED |
| PCParker-hannifin CORP. | Lincoln | NE | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Mobile Cylinder Div | Minneapolis | MN | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Refrigerating Specialties Di | Mauston | WI | — | ◇ UNVERIFIED |
| PHParker Hannifin Integrated Hydraulics Division | Lincolnshire | IL | — | ◇ UNVERIFIED |
| PHParker Hannifin /mobile Systems | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| PHParker Hannifin Sporlan Div - Plant #2 | Washington | MO | — | ◇ UNVERIFIED |
| PPParker-hose Products Division | Mason | MI | — | ◇ UNVERIFIED |
| PDPegasus Design | Livermore | CA | — | ◇ UNVERIFIED |
| PVPentair Valves & Controls | Black Mountain | NC | — | ◇ UNVERIFIED |
| PIPeters Interest LLC | Escondido | CA | — | ◇ UNVERIFIED |
| PEPetroleum Equipment and Manufacturing Company | Hialeah | FL | — | ◇ UNVERIFIED |
| PLPirtek Lockhart | Buda | TX | — | ◇ UNVERIFIED |
| PSPirtek Sfo | South San Francisco | CA | — | ◇ UNVERIFIED |
| PPPmi Pump Parts, LLC | Aledo | TX | — | ◇ UNVERIFIED |
| PIPneumadyne INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| PIPneumadyne INC | Plymouth | MN | — | ◇ UNVERIFIED |
| PFPompeii Furniture | Miami | FL | — | ◇ UNVERIFIED |
| PDPower Drives INC. | Erie | PA | — | ◇ UNVERIFIED |
| PSPower Services Group (psg) | Gainesville | GA | — | ◇ UNVERIFIED |
| PIPowertrack INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| PWPratt & Whitney | Jupiter | FL | — | ◇ UNVERIFIED |
| PEPrecision Engine Control Corporation | San Diego | CA | — | ◇ UNVERIFIED |
 Precision Fluid Controls INC | Rocklin | CA | — | ◇ UNVERIFIED |
| Precision Fluid Controls INC (martin Testing Labratories) | Mcclellan | CA | — | ◇ UNVERIFIED |
| PMPrecision Metal Works Holdings, LLC | Saint Joseph | MO | — | ◇ UNVERIFIED |
| PVPrecision Valve Group | Monroe | NC | — | ◇ UNVERIFIED |
| PHProgressive Hydraulics Incorporated | Stratford | CT | — | ◇ UNVERIFIED |
| PIProhos, INC. | Whitehouse | OH | — | ◇ UNVERIFIED |
| PTProject Tool and Die INC | Redding | CA | — | ◇ UNVERIFIED |
| PIPte INC | Mora | MN | — | ◇ UNVERIFIED |
| QTQuantum Technical Services, Inc. | Frankfort | IL | — | ◇ UNVERIFIED |
| RMRAMCO Manufacturing Co., Inc. | Houston | TX | — | ◇ UNVERIFIED |
| RIRawson INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| RBR & B Automation INC | Temecula | CA | — | ◇ UNVERIFIED |
| RAR&b Automation INC | Temecula | CA | — | ◇ UNVERIFIED |
| RVRed Valve Company, INC. | Carnegie | PA | — | ◇ UNVERIFIED |
